Past Events

In this talk, I will present a recent work in which two co-authors and myself studied the behaviour of a local algorithm optimizing the weight of a graph. More precisely, the process starts with a given subgraph H of the complete graph with uniform...

On Feb 13, J. Campion Loth gave the Discrete Math seminar on "Symmetry of Star Factorisations", where he focused on the combinatorial aspects of these objects and related factorisation problems. In this talk, we will look at these objects, which I...

TBA

In a linear population model that has a unique “largest” eigenvalue and is suitably irreducible, the corresponding left and right (Perron) eigenvectors determine the long-term relative prevalence and reproductive value of different types of...

The twin prime conjecture asserts that there are infinitely many primes p for which p+2 is also prime. This conjecture appears far out of reach of current mathematical techniques. However, in 2013 Zhang achieved a breakthrough, showing that there...

A Fourier quasicrystal is a discrete subset of Euclidean space whose Fourier transform is also discrete. These sets are almost periodic, often without being periodic or even containing long arithmetic progressions. In 2020, Kurasov and Sarnak gave a...

In this talk we introduce the mathematical setup for diffraction via the Fourier transform of tempered distributions. We cover some examples with pure point spectrum and discuss the connection between pure point spectrum and almost periodicity.

A game represents an interaction in which a group of players make individual choices and receive individual payoffs that depend on the aggregate set of choices. We consider indefinitely repeated games with endogenous separation (meaning that players...

Computational convex analysis aims at computing mathematical objects commonly used in convex analysis with an emphasis on lower dimensions to facilitate visualization. The latest contributions have focused on computing the closest convex function and...